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Finding the Fourth Proportional to 363.62, 545.70 and 190.33

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Solution

The fourth proportional to 363.62, 545.70 and 190.33 is: 285.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.62 : 545.70 = 190.33 : x
  2. Step 2: Convert to fraction form
    363.62/545.70 = 190.33/x
  3. Step 3: Cross multiply
    363.62x = 545.70 × 190.33
  4. Step 4: Simplify right side
    363.62x = 103,863.08
  5. Step 5: Solve for x
    x = 103,863.08/363.62
  6. Step 6: Final answer
    x = 285.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.